求导

另一方面，可以从对y积分开始，然后关于x求导，进行匹配。

I mean , on the other hand , you could start with integrating with respect to y and then differentiate and match with respect to x.

这里就需要知道如何对倒数求导。

Here we need to know how to differentiate the inverse .

本文采用了非等距结点B样条函数求导的方法，它具有灵活统一的优点。

The advantage of the method is of flexibility and unity .

从多元函数的角度解决n元幂指函数的求导

Solving Derivation Problem of Power Exponential Function of N Variables from the Point of View of the Function of Many Variables

问题是我们怎样，对一个含有两个变量的函数f求导呢？

So , the question is how do we do the same for a function of two variables , f ?

一类有理Bézier曲线及其求积求导的多项式逼近

Approximating a kind of rational B é zier curves and their integral computation and derivatives using polynomial curves

因此，SWT求导是一种有效的可用于谱图分析的方法。

Therefore , SWT is an efficient tool in spectra analysis .

Legendre级数逐项求导的若干定理及应用

The Theorems and Application about Term-by-term Differentiation of Legendre Series

本文以B样条函数的插值、求导、求积为基础，建立了用B样条函数正演二度和三度复杂形态变密度地质体重力异常的方法。

B spline function methods for calculating gravity fields of 2D and 3D density-variable source bodies with complex shape are developed on the basis of interpolation , derivation and integration of B spline function .

f′（x-1）中间变量的求导与积分不同锻炼项目对大学生特质焦虑的影响及其心理中介变量的研究

The Study of Effects of Different Exercise Project on University Student Trait-anxiety and Its Psychological Intermediary Variable

Banach空间非线性算子在Frechet意义下求导问题的综合报告

Synthesis Report of Derivative of Nonlinear Operator in Banach Space Under the Frechet Sense

为此本文在Excel软件基础上，对ANSYS中导出的数据分别用分段曲线拟合及求导等数学方法进行了处理。

So the data educed from ANSYS software is treated by the mathematic method of least-square fragmented curve-fitting and differential coefficient on the basis of Excel software .

该方法把系统中的范数有界不确定作外部扰动处理，降低了对Lyapunov函数求导时由不等式的放大带来的保守性。

The norm-bounded uncertainty is regarded as exogenous disturbance , so the conservativeness coming from over-bounding of inequalities is degraded in the derivative of Lyapunov functional .

本文通过分析最小二乘多项式平滑技术的数学原理，依据MATLAB这一基于矩阵运算的科学计算语言，提出了用MATLAB实现平滑系数和求导系数的精确表达的方法。

By analyzing the mathematics theory of the least squares polynomial , a method of achieving the coefficients of the smoothing and derivative is introduced , by the MATLAB language based on the matrix calculation .

该方案利用动态面控制（DSC）技术，将一阶滤波器引入后推设计中避免了传统后推方法对虚拟控制反复求导而导致的计算复杂问题。

By using dynamic surface control and introducing first order filter , the explosion of complexity caused by repeated differentiations of virtual control in traditional backstepping design is eliminated .

根据Rayleigh脉冲峰值频率与脉冲形状参数α、求导阶数n的关系提出了一种设计超宽带脉冲的新算法。

A new pulse design algorithm was proposed to generate UWB pulse based on the relation among the peak frequency of Rayleigh monopulse , the pulse shape parameter α and the order of differentiation n.

Holland教授1975年首先提出，其主要特点是直接对结构对象进行操作，不存在求导和函数连续性的限定；

Holland in 1975 . its main feature is : direct operation to structural object , no the limitation of function continuity or function derivativeness ;

对于非连续的功能函数，应采用RPT求导。

For the discontinuous limit state function , RPT should be used because of the large error of FDM .

用基组展开和解析求导的方法精确计算Be原子SCF水平的极化率和超极化率。

In the present work the polarizability and the hyperpolarizability of Be atom are obtained at the SCF level with basis-set expansion and analytic derivation method .

问题的关键在于A的二阶导数，对V和T以这样一个顺序求导，和对T和V以这样一个顺序，求导是一样的。

And the point is that the second derivative of A , with respect to V and T in this order is the same as the second derivative of a with respect to T and V in this order .

本文运用对数求导的方法，讨论了Picard例外值，从而完善了定理的证明。

By means of logarithmic coefficient , the Picard 's value was discussed , so the proof of the theorem was improved .

通过定义误差函数作为设计目标，采用弹性BP算法，并用变化率以及弹性BP算法中的符号法来处理某些求导关系，获得适于实时在线调整网络权值的修正公式。

By means of defining error function as the design objective , using resilient back-propagation ( BP ) algorithm and changing rate and sign in resilient BP algorithm , some differential relations are dealt with . The modified formula for on-line updating network weights is obtained .

用算法语言BCY进行初等函数公式求导的初步尝试

An Attempt of Deriving the Derivative Function of an Elementary Function by Algorithmic Language BCY

随后，对Jacobian矩阵方程和连杆Jacobian矩阵方程进行求导，从而对该机构各转动副的加速度进行分析。

Subsequently , taking the derivative of the Jacobian matrix and link Jacobian matrix equations with respect to time , the angular acceleration analysis of each revolute of the manipulator is developed as well .

本文提出用积分求导法（DQM）用于分析高速集成电路系统互连线的瞬态响应。

The Differential Quadrature Method ( DQM ) is proposed in this paper for analysis of the transient response of the interconnects for high speed IC systems .

如果你对它关于x求导，就会得到2xy，而这项就没有了，因为它里面没有。

See , if you took the derivative of this with respect to x you will get2xy and this guy will go away x because there is no x in it .

根据它的原理，我们通常用v表示，这里的V更代表速率而不是矢量，你能通过，对一个关于时间的位置向量求导得到它。

And , the way we can get it , so , it 's called usually V , so , V here stands for velocity more than for vector . And , you just get it by taking the derivative of a position vector with respect to time .

利用NURBS曲线基函数的定义和NURBS曲线的矩阵表示，从B样条的相关算法出发，可解决NURBS曲线的求值、求导、求积算法和NURBS曲线的节点、升阶算法等问题。

In the use of the recurrence definition and the matrix presentation of NURBS curve , the algorithm of curve is outlined from the correspondent algorithm of B-Spline , concerning on the evaluating , derivative , integral , knots inserting and degree elevating .

满足边界条件的挠曲面方程的解既已求得，板中内力就可以简单地通过求导得到。Rowe的不同解法，得到精确解。

Now that the solutions are obtained to the deflection surface equations which satisfy boundary conditions , the internal forces in the plate can be easily got through determining the partial derivatives .

研究了拟Fourier-Jacobi级数逐项求导后所得的导级教，给出了一个等价收敛定理。

An equiconvergence theorem is given for the differentiated series from the quasi Fourier-Jacobi series .